Thompson Peak Lookout
|Registry Numbers||US 1340, CA 163 (view other lookouts in United States, California)|
|Date Registered||October 26, 2019|
|Nominated by||Brad Eells|
Plumas National Forest
Plumas County, California
N 40° 15.658' W 120° 33.458' (view using Google Maps)
N 40° 15' 39" W 120° 33' 28"
N 40.260964° W 120.557639°
|Elevation||7,777 ft (2,370 m)|
|Administered by||US Forest Service - Plumas National Forest|
Thompson Peak was constructed and opened in June 1931. The lookout is an R1 design, a Region 1 revision of the California Region 4AR per Thornton. The tower is enclosed timber at 9 feet tall.
Thompson Peak also hosted the Janesville Gap Filler Radar Annex facility from 1958 to 1970.
The Site was utilized by the US Air Force as an Aircraft Control & Warning (AC&W) site. This AC&W Site was part of the Semi-Automatic Ground Environment (SAGE) radar system. The Former Janesville GFA utilized an AN/FPS-18 model gap filler radar, where "AN/FPS" is an acronym for Army-Navy Fixed, Pulsed radar, Search electronic device. (www.militarymuseum.org)
Janesville Gap Filler Radar Annex and Thompson Peak Fire Lookout - Late 1950's
Photo courtesy of www.militarymuseum.org